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Model Experiment for Molten Metal Temperature Homogenization with Rotating Permanent Magnet

  • Phenomena and Scales Influencing Alloy Solidification Microstructures
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Abstract

In order to obtain a uniform thermal distribution of a liquid metal melt in e.g. aluminum furnaces, mixing can be provided by rotating permanent magnets. A rotating permanent magnet generates a rotating magnetic field which induces a volume force in the nearby liquid metal. This paper presents a quick-and-dirty experimental and numerical study of temperature equalization with a permanent magnet for a liquid metal volume with a vertical temperature gradient. Thermocouples and a thermal camera have been used to capture the temperature dynamics. The setup consists of a thin walled stainless steel container filled with GaInSn eutectic alloy and a cylindrical NdFeB permanent magnet placed near the side wall. A parametric sweep has been performed by changing the inclination angle of the magnet in order to find the most efficient position for which the thermal balance can be achieved the fastest.

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Notes

  1. Available at https://openfoam.org/

  2. Available at http://www.elmerfem.org/

  3. Available at http://gmsh.info/

  4. Available at https://www.salome-platform.org/

  5. Available at https://gitlab.com/eurocc-latvia/mhd-mixing-hpc-model

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Acknowledgements

This study has been financed by the European Regional Development Fund project “Electromagnetic technology for aluminium degassing process” under Grant No. 1.1.1.1/18/A/149. The HPC simulations were performed using the code developed as a part of the activities organized by the EuroCC National HPC Competence Centre of Latvia. D. Berenis received funding from project “Strengthening of the capacity of doctoral studies at the University of Latvia within the framework of the new doctoral model”, identification No. 8.2.2.0/20/I/006.

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Authors and Affiliations

  1. Institute of Physics, University of Latvia, Miera iela 32, Salaspils, LV-2169, Latvia

    Kitija Kristiāna Berga, Didzis Berenis, Matīss Kalvāns, Ivars Krastiņš, Toms Beinerts, Ilmārs Grants & Andris Bojarevičs

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  1. Kitija Kristiāna Berga
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  2. Didzis Berenis
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  3. Matīss Kalvāns
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  7. Andris Bojarevičs
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Correspondence to Ivars Krastiņš.

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Berga, K.K., Berenis, D., Kalvāns, M. et al. Model Experiment for Molten Metal Temperature Homogenization with Rotating Permanent Magnet. JOM 74, 2450–2460 (2022). https://doi.org/10.1007/s11837-022-05288-y

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